The Experts below are selected from a list of 249 Experts worldwide ranked by ideXlab platform

Richa Kothari - One of the best experts on this subject based on the ideXlab platform.

  • review on Solar Air Heating system with and without thermal energy storage system
    Renewable & Sustainable Energy Reviews, 2012
    Co-Authors: Vineet Veer Tyagi, Nasrudin Abd Rahim, N. L. Panwar, Richa Kothari
    Abstract:

    In order to produce process heat for drying of agricultural, textile, marine products, Heating of buildings and re-generating dehumidify agent, Solar energy is one of the promising heat sources for meeting energy demand without putting adverse impact of environment. Hence it plays a key role for sustainable development. Solar energy is intermittent in nature and time dependent energy source. Owing to this nature, PCMs based thermal energy storage system can achieve the more popularity for Solar energy based Heating systems. The recent researches focused on the phase change materials (PCMs), as latent heat storage is more efficient than sensible heat storage. In this paper an attempt has been made to present holistic view of available Solar Air heater for different applications and their performance.

  • Review on Solar Air Heating system with and without thermal energy storage system
    Renewable and Sustainable Energy Reviews, 2012
    Co-Authors: Vineet Veer Tyagi, Nasrudin Abd Rahim, N. L. Panwar, Richa Kothari
    Abstract:

    In order to produce process heat for drying of agricultural, textile, marine products, Heating of buildings and re-generating dehumidify agent, Solar energy is one of the promising heat sources for meeting energy demand without putting adverse impact of environment. Hence it plays a key role for sustainable development. Solar energy is intermittent in nature and time dependent energy source. Owing to this nature, PCMs based thermal energy storage system can achieve the more popularity for Solar energy based Heating systems. The recent researches focused on the phase change materials (PCMs), as latent heat storage is more efficient than sensible heat storage. In this paper an attempt has been made to present holistic view of available Solar Air heater for different applications and their performance. © 2011 Elsevier Ltd. All rights reserved.

Ramalingam Velraj - One of the best experts on this subject based on the ideXlab platform.

  • Effect of using low-cost thermal insulation material in a Solar Air Heating system with a shot blasted V-corrugated absorber plate
    Thermal science and engineering, 2019
    Co-Authors: P. Ganesh Kumar, K. Balaji, D. Sakthivadivel, V.s. Vigneswaran, M. Meikandan, Ramalingam Velraj
    Abstract:

    Abstract This research study presents the experimental investigations on heat transfer performance of three different Solar Air heaters, without thermal insulation and with the effective use of bubble wrap and ceramic wool as thermal insulators. Thermal insulations reduce the heat losses from the bottom side of the Solar collector. The selection of low cost and lower thermal conductivity (TC) insulation material plays an energetic role in enhancing the efficiency of the collector. The aluminum absorber plate of the Solar collector is made of a corrugated surface area with a shot blasted of 1.96 m × 0.95 m × 0.12 m size formed in a rectangular. The thermal efficiencies of the shot blasted Solar collector with and without bubble wrap, insulation and collector with ceramic wool insulation are evaluated theoretically and the expected performance results are analyzed in detail. The present paper covers the first time that eco-friendly bubble wrap has been used as an insulation material for a shot blasted Solar Air heater. The experimental results are collected with a shot blasted V-corrugated absorber Solar Air Heating system (SAHS) with both bubble wrap (BW) and ceramic wool insulation. The results are compared to deviations. The climatic parameters such as wind speed, atmospheric temperature, Solar irradiance and internal temperatures of the SAH are measured at repeated intervals of time to pinpoint heat losses. The investigational outcomes presented that the thermal efficiency of the ceramic wool insulated SAHS is higher than bubble wrap insulated SAHS for corrugated shot-blasted SAHS.

  • parametric studies on packed bed storage unit filled with pcm encapsulated spherical containers for low temperature Solar Air Heating applications
    Energy Conversion and Management, 2014
    Co-Authors: S Karthikeyan, Ravikumar G Solomon, V Kumaresan, Ramalingam Velraj
    Abstract:

    Abstract The focus of the present work is to perform parametric studies on the performance of a packed bed storage unit filled with phase change material (PCM) encapsulated spherical containers, suitable for low temperature Solar Air Heating applications. A parametric analysis was carried out using the validated enthalpy based numerical model that considers the thermal gradient inside the PCM container. The results of simulation analysis showed that the size of the PCM ball, fluid inlet temperature and the mass flow rate of the heat transfer fluid (HTF) influenced respectively the heat transfer area in the packed bed, temperature difference between the HTF and PCM and the surface convective heat transfer coefficient between the HTF and PCM balls. The poor thermal conductivity of the PCM has only negligible effect on heat transfer due to high surface convective resistance provided by the Air. The influence of various parameters for the selected range of values were analyzed using the charging time, instantaneous heat stored and cumulative heat stored during the charging process.

  • experimental investigation on phase change material based thermal storage system for Solar Air Heating applications
    Solar Energy, 2013
    Co-Authors: S. Esakkimuthu, Abdel Hakim Hassabou, C. Palaniappan, Jurgen Blumenberg, M. Spinnler, Ramalingam Velraj
    Abstract:

    Abstract Many types of Solar Air heaters have been developed in India and their performance has been studied in detail. In Solar dryers the drying process largely depends on the varying local weather conditions, resulting in a poor quality of the dried product. To eliminate the fluctuations in the temperature of the hot Air, Solar collectors are integrated with the Phase Change Material (PCM) based thermal storage unit. The present study is aimed at investigating the feasibility of using a latent heat storage unit with HS 58, an inorganic salt based phase change material, to store the excess Solar energy, and release it when the energy availability is inadequate during poor weather conditions, and to extend the period of utilisation beyond the sunshine hours. Experiments were conducted to evaluate the charging and discharging characteristics of the storage unit. The effects of inlet flow rate during the charging and discharging processes were measured and reported. For the storage tank configuration and PCM ball size considered in the present investigation, the mass flow rate of 200 kg/h is able to provide a near uniform rate of heat transfer during charging and discharging processes. Further, low mass flow rate is able to utilise the maximum capacity of the storage system and to supply heat for a longer duration.

  • Experimental investigation on phase change material based thermal storage system for Solar Air Heating applications
    Solar Energy, 2013
    Co-Authors: S. Esakkimuthu, Abdel Hakim Hassabou, C. Palaniappan, Jurgen Blumenberg, M. Spinnler, Ramalingam Velraj
    Abstract:

    Many types of Solar Air heaters have been developed in India and their performance has been studied in detail. In Solar dryers the drying process largely depends on the varying local weather conditions, resulting in a poor quality of the dried product. To eliminate the fluctuations in the temperature of the hot Air, Solar collectors are integrated with the Phase Change Material (PCM) based thermal storage unit. The present study is aimed at investigating the feasibility of using a latent heat storage unit with HS 58, an inorganic salt based phase change material, to store the excess Solar energy, and release it when the energy availability is inadequate during poor weather conditions, and to extend the period of utilisation beyond the sunshine hours. Experiments were conducted to evaluate the charging and discharging characteristics of the storage unit. The effects of inlet flow rate during the charging and discharging processes were measured and reported. For the storage tank configuration and PCM ball size considered in the present investigation, the mass flow rate of 200. kg/h is able to provide a near uniform rate of heat transfer during charging and discharging processes. Further, low mass flow rate is able to utilise the maximum capacity of the storage system and to supply heat for a longer duration. © 2012 Elsevier Ltd.

Vineet Veer Tyagi - One of the best experts on this subject based on the ideXlab platform.

  • review on Solar Air Heating system with and without thermal energy storage system
    Renewable & Sustainable Energy Reviews, 2012
    Co-Authors: Vineet Veer Tyagi, Nasrudin Abd Rahim, N. L. Panwar, Richa Kothari
    Abstract:

    In order to produce process heat for drying of agricultural, textile, marine products, Heating of buildings and re-generating dehumidify agent, Solar energy is one of the promising heat sources for meeting energy demand without putting adverse impact of environment. Hence it plays a key role for sustainable development. Solar energy is intermittent in nature and time dependent energy source. Owing to this nature, PCMs based thermal energy storage system can achieve the more popularity for Solar energy based Heating systems. The recent researches focused on the phase change materials (PCMs), as latent heat storage is more efficient than sensible heat storage. In this paper an attempt has been made to present holistic view of available Solar Air heater for different applications and their performance.

  • Review on Solar Air Heating system with and without thermal energy storage system
    Renewable and Sustainable Energy Reviews, 2012
    Co-Authors: Vineet Veer Tyagi, Nasrudin Abd Rahim, N. L. Panwar, Richa Kothari
    Abstract:

    In order to produce process heat for drying of agricultural, textile, marine products, Heating of buildings and re-generating dehumidify agent, Solar energy is one of the promising heat sources for meeting energy demand without putting adverse impact of environment. Hence it plays a key role for sustainable development. Solar energy is intermittent in nature and time dependent energy source. Owing to this nature, PCMs based thermal energy storage system can achieve the more popularity for Solar energy based Heating systems. The recent researches focused on the phase change materials (PCMs), as latent heat storage is more efficient than sensible heat storage. In this paper an attempt has been made to present holistic view of available Solar Air heater for different applications and their performance. © 2011 Elsevier Ltd. All rights reserved.

N. L. Panwar - One of the best experts on this subject based on the ideXlab platform.

  • review on Solar Air Heating system with and without thermal energy storage system
    Renewable & Sustainable Energy Reviews, 2012
    Co-Authors: Vineet Veer Tyagi, Nasrudin Abd Rahim, N. L. Panwar, Richa Kothari
    Abstract:

    In order to produce process heat for drying of agricultural, textile, marine products, Heating of buildings and re-generating dehumidify agent, Solar energy is one of the promising heat sources for meeting energy demand without putting adverse impact of environment. Hence it plays a key role for sustainable development. Solar energy is intermittent in nature and time dependent energy source. Owing to this nature, PCMs based thermal energy storage system can achieve the more popularity for Solar energy based Heating systems. The recent researches focused on the phase change materials (PCMs), as latent heat storage is more efficient than sensible heat storage. In this paper an attempt has been made to present holistic view of available Solar Air heater for different applications and their performance.

  • Review on Solar Air Heating system with and without thermal energy storage system
    Renewable and Sustainable Energy Reviews, 2012
    Co-Authors: Vineet Veer Tyagi, Nasrudin Abd Rahim, N. L. Panwar, Richa Kothari
    Abstract:

    In order to produce process heat for drying of agricultural, textile, marine products, Heating of buildings and re-generating dehumidify agent, Solar energy is one of the promising heat sources for meeting energy demand without putting adverse impact of environment. Hence it plays a key role for sustainable development. Solar energy is intermittent in nature and time dependent energy source. Owing to this nature, PCMs based thermal energy storage system can achieve the more popularity for Solar energy based Heating systems. The recent researches focused on the phase change materials (PCMs), as latent heat storage is more efficient than sensible heat storage. In this paper an attempt has been made to present holistic view of available Solar Air heater for different applications and their performance. © 2011 Elsevier Ltd. All rights reserved.

Nasrudin Abd Rahim - One of the best experts on this subject based on the ideXlab platform.

  • review on Solar Air Heating system with and without thermal energy storage system
    Renewable & Sustainable Energy Reviews, 2012
    Co-Authors: Vineet Veer Tyagi, Nasrudin Abd Rahim, N. L. Panwar, Richa Kothari
    Abstract:

    In order to produce process heat for drying of agricultural, textile, marine products, Heating of buildings and re-generating dehumidify agent, Solar energy is one of the promising heat sources for meeting energy demand without putting adverse impact of environment. Hence it plays a key role for sustainable development. Solar energy is intermittent in nature and time dependent energy source. Owing to this nature, PCMs based thermal energy storage system can achieve the more popularity for Solar energy based Heating systems. The recent researches focused on the phase change materials (PCMs), as latent heat storage is more efficient than sensible heat storage. In this paper an attempt has been made to present holistic view of available Solar Air heater for different applications and their performance.

  • Review on Solar Air Heating system with and without thermal energy storage system
    Renewable and Sustainable Energy Reviews, 2012
    Co-Authors: Vineet Veer Tyagi, Nasrudin Abd Rahim, N. L. Panwar, Richa Kothari
    Abstract:

    In order to produce process heat for drying of agricultural, textile, marine products, Heating of buildings and re-generating dehumidify agent, Solar energy is one of the promising heat sources for meeting energy demand without putting adverse impact of environment. Hence it plays a key role for sustainable development. Solar energy is intermittent in nature and time dependent energy source. Owing to this nature, PCMs based thermal energy storage system can achieve the more popularity for Solar energy based Heating systems. The recent researches focused on the phase change materials (PCMs), as latent heat storage is more efficient than sensible heat storage. In this paper an attempt has been made to present holistic view of available Solar Air heater for different applications and their performance. © 2011 Elsevier Ltd. All rights reserved.